JPH076237B2 - Base metal fixing structure - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention is capable of firmly and securely fixing a base metal fitting supporting a lower end of a wall panel to a foundation, and fixing structure of the base metal fitting capable of enhancing a wall panel installation accuracy. Regarding

[Conventional technology]

To build the wall panel on the foundation, a leg piece c placed on the foundation f and fixed to the anchor bolt b as shown in FIG. 6, and a receiving piece d for supporting the lower end of the wall panel p. The base metal fitting e consisting of is used.

[Problems to be Solved by the Invention]

However, since the anchor bolts b are fixed by embedding the lower part of the foundation f made of concrete, there is a tendency for displacement when forming the foundation f. For example, as shown in FIG. As shown by the alternate long and short dash line, the anchor bolt b may be displaced or embedded while being inclined.

Therefore, the base metal fitting e is displaced by the positional displacement of the anchor bolt b and fixed on the foundation f, and as a result, there is a problem that the wall panel p cannot be installed at a predetermined position.

On the other hand, although the top surface of the foundation f is relatively flat after the top-end processing, it is concrete molding as described above, and due to the presence of many small irregularities, the foundation top surface and the base metal fitting e are Rubbing will occur between the leg c.

As a result, even when the base metal fitting e is tightened with the nut h that is screwed to the anchor bolt b, the base metal fitting e is not completely fixed, and the accuracy of building the wall panel p varies. Is likely to occur.

The present invention is based on the fact that the legs of the base metal fitting are nut-tightened via a fixing plate having a boss portion surrounding the through hole through which the anchor bolt passes and a downwardly facing claw piece, and the base metal fitting is firmly and firmly fixed. The purpose is to provide a fixing structure for base metal fittings that can be accurately fixed to the foundation and enhance the quality of the wall panel installation.

[Means for Solving the Problems]

The present invention relates to the anchor bolt and the upper surface of the leg piece, wherein the leg piece of the base metal fitting includes a leg piece placed on the upper surface of the foundation on which the anchor bolt is planted and a receiving piece that supports the lower end of the wall panel. A fixing structure of a base metal fixture that is fixed to the upper surface of the foundation using a fixed plate to be placed and a nut that is screwed onto the anchor bolt and pushes down the fixed plate, wherein the leg piece has a larger diameter than the anchor bolt. While forming a hole through which the anchor bolt passes, and forming the leg piece in a curved shape having a maximum height in the vicinity of the hole and descending toward two sides parallel to the longitudinal direction of the foundation, The fixing plate has a rectangular base having two edges parallel to the longitudinal direction of the base, a through hole through which the anchor bolt passes, and a height which is substantially equal to the thickness of the leg piece and surrounds the through hole. The hole hanging from the bottom surface of the substrate And a downwardly facing claw piece formed on at least both ends of the two end edges of the substrate, and the anchor bolt protruding from the hole is passed through the through hole of the fixing plate. As a result, the fixing plate is placed on the upper surface of the leg piece and the leg piece is pressed through the fixing plate by tightening the nut.

[Action]

Since the foot of the base metal fitting has a hole with a diameter larger than that of the anchor bolt, even if the anchor bolt is misaligned or tilted, the receiving piece can be raised to a predetermined position, and therefore No misalignment occurs when installing wall panels.

Also, the fixed plate has a substrate that straddles the hole of the leg piece,
Since the substrate has a boss portion that surrounds the through hole through which the anchor bolt passes and has a boss portion that is approximately the same height as the thickness of the leg piece, the peripheral edge portion of the substrate can overlap the leg piece outside the hole portion.

Moreover, by providing the downwardly facing claw pieces on the peripheral edge of the substrate, the nuts can be securely pressed against the leg pieces via the fixing plate together with the tightening of the nuts, so that the base metal fittings can be firmly and accurately fixed. . Also, the leg piece is formed in a curved shape having a maximum height in the vicinity of the hole portion and descending toward each of two sides parallel to the longitudinal direction of the base, while the leg plate is formed in the longitudinal direction of the base of the rectangular plate of the fixing plate. Two parallel
Since the claw pieces are provided on at least both ends of the edge, a gap should be formed between the lower surface near the hole portion of the leg piece where the claw pieces press the portions near the two sides by tightening the nut and the base upper surface. Even if there is unevenness on the upper surface of the foundation, the unevenness can be absorbed by this gap, and the installation accuracy can be improved without lowering the mounting strength of the base metal fitting.

〔Example〕

 An embodiment of the present invention will be described below with reference to the drawings.

Referring to the drawings, the base metal fixture fixing structure of the present invention includes a base metal fixture 1 including a leg piece 3 placed on the upper surface of a foundation F in which an anchor bolt 2 is planted and a receiving piece 4 supporting a lower end of a wall panel P.
The leg plate 3 is provided with a hole 5 through which the anchor bolt 2 passes, and the anchor 5 is anchored to a rectangular substrate 6 that straddles the hole 5 and has two edges parallel to the longitudinal direction of the foundation F. A through hole 7 through which the bolt 2 passes and a boss portion 9 surrounding the through hole 7.
And a fixing plate 11 provided with at least both ends of the two end edges of the substrate 6 and provided with downwardly facing claw pieces 10 are arranged on the upper surface of the leg piece 3 and screwed to the anchor bolt 2. This is a structure in which the leg 12 is pressed through the fixing plate 11 by tightening the nut 12 with the nut 12.

The foundation F is arranged along the longitudinal direction of the wall panel P, and a plurality of anchor bolts 2 are planted side by side with their upper ends projecting from the upper surface of the foundation F at appropriate intervals. The top surface of the foundation F is topped.

In the present embodiment, the wall panel P is a panel body in which the side plates 23 and 24 are attached to the inner and outer surfaces of a rectangular frame which connects both ends of the upper frame member 21 and the lower frame member 22 with the side frame members. On the lower surface, a groove 25 extending in the longitudinal direction of the lower frame member 22 is formed over substantially the entire width of the wall panel P.

The base metal fitting 2 is formed by joining the leg piece 3 and the receiving piece 4 in an L shape as described above, and is formed as an elongated body having a length substantially equal to the width dimension of the wall panel P in this embodiment. It

A plurality of holes 5 are formed in the leg piece 3 at a pitch substantially equal to the distance between the anchor bolts 2, and the holes 5 are larger in diameter than the diameter of the anchor bolt 2 in this embodiment. Is set to double or more.

Further, the base metal fitting 2 is formed by integrally forming the leg piece 3 and the receiving piece 4 by bending an elastic plate body such as spring steel, and the leg piece 3 connects the plurality of hole portions 5 in advance. It is curved in an arc shape convex upward with the axis as the center. In this way, the leg piece 3 is formed in a curved shape having the maximum height in the vicinity of the hole portion 5 and descending toward the two sides parallel to the longitudinal direction of the foundation F. The arc height δ of the curve is a height capable of absorbing unevenness on the upper surface of the base F, that is, 1.0 mm or more and 1.5 or more.
It is desirable to be less than mm.

The fixed plate 11 is a rectangular plate substrate 6 having a through hole 7 through which the anchor bolt 2 is inserted without a gap in the central portion.
And a boss portion 9 surrounding the through hole 7 and hanging from the substrate 6, and four downwardly facing claw pieces 10 formed at four corners of the substrate 6, that is, at both ends of the two end edges.

Further, the fixed plate 11 is made of a plate material made of an elastic material such as steel,
In this embodiment, the boss portion 9 is formed integrally with the substrate 6 by squeezing the substrate 6 at the peripheral edge of the through hole 7, and the claw pieces 10 ... By bending each corner of the substrate 6 downward. To be done.

The height H of the lower surface 9a of the boss portion 9 from the lower surface of the substrate 6 is substantially equal to the thickness T of the leg piece 3 as shown in FIG. More specifically, the lower surface 9a of the boss 9 and the claw piece
The distance HO between the lower surface 10a of 10 and the lower surface 10a of the leg 10 must be at least smaller than the thickness T of the leg piece 3.

Further, in the present embodiment, the center O position of the through hole 7 is made longer by X and Y in the direction along the receiving piece 4 of the base metal fitting 1 with respect to the center of the substrate 6 and in the direction closer to the receiving piece 4 at right angles. I'm eccentric by just that much

In this way, the center position O of the through hole 7 is vertically and horizontally set to X and Y, respectively.
By eccentricizing the anchor plate 2 by a certain amount, for example, when the anchor bolt 2 is eccentrically planted on the side close to the receiving piece 4, the fixing plate 11 is provided with a through hole 7 as shown in FIG. 5 (a). Is placed on the upper surface of the leg piece 3 so as to be eccentric to the receiving piece 4 side. By the above-mentioned placement, the fixing plate 11 does not protrude from the hole portion 5, so that the claw piece 10 can surely contact the leg piece 3.

On the contrary, when the anchor bolt 2 is planted at a position away from the receiving piece 4, the fixing plate 11 is oriented so that the through hole 7 is eccentric to the receiving piece 4 as shown in FIG. 5 (b). The plate is fixed from the hole 5 by mounting it on the upper surface of the leg piece 3.
11 can be prevented from protruding.

Further, at a position where the anchor bolt 2 is displaced in the extending direction of the receiving piece 4, the center O of the through hole 7 is displaced in the displacement direction as shown in FIG. Place on.

In this way, the center position O of the through hole 7 and the center position of the substrate 6 are deviated in the vertical and horizontal directions, respectively, to absorb the planting error of the anchor bolt 2 and to reduce the hole 5 of the base metal fitting 1. The substrate 6 can be placed on the upper surface of the leg piece 3 while straddling the base plate.

Then, the anchor bolt 2 is inserted into the hole 5 of the base metal fitting 1 and the receiving piece 4 is positioned at a predetermined position to mount the base metal fitting 1 on the upper surface of the foundation F. The fixing plate 11 is placed on the upper surface of the rear leg piece 3 with the claw piece 10 facing downward and the through hole 7 fitted in the anchor bolt 2. On the upper surface of the fixed plate 11, a flat washer 31 and a spring washer 32 are sandwiched, and a nut 12 to be screwed with the anchor bolt 2 is screwed. When the nut 12 is screwed in, the fixed plate 11 presses the substrate 6 with the claw piece 10. When pressing the fixing plate, the boss 9
Since the boss portion 9 is guided by the anchor bolt 2 with no lateral displacement and the boss portion 9 is formed to have substantially the same thickness as the leg piece 3, the lower surface of the boss portion 9 does not contact the upper surface of the base F, The leg piece 3 can be reliably pressed by the claw piece 10.

In the base metal fitting 1, since the leg piece 3 is made of an elastic material and is curved in a convex shape in advance, the radius of curvature is gradually increased by the pressing of the claw piece 10, and there is unevenness on the upper surface of the foundation F. However, since both ends of the leg piece 3 are in contact with the upper surface of the base F, the leg piece 3 is fixed to the base F in a stable state without rattling, and the receiving piece 4 is not displaced or tilted.

Therefore, the lower end of the wall panel P fitted into the receiving piece 4 is held at an accurate position.

In addition, the upper end portion of the wall panel P is a connecting metal fitting that is attached to the upper frame member 21.
It is held by the beam H arranged above the wall panel P by 34.

In the present invention, the fixing plate may be formed by bending the substrate in a wave shape to increase the rigidity of the base position, and the boss portion may be a split boss instead of the cylindrical shape. Can be transformed into

〔The invention's effect〕

As described above, the fixing structure of the base metal fitting of the present invention has a hole larger in diameter than the anchor bolt in the leg piece of the base metal fitting.
Even when the anchor bolt is displaced a little and is planted, the receiving piece can be raised to a predetermined position, and the wall panel installation accuracy is improved.

Further, the leg pieces are formed in a curved shape having the maximum height in the vicinity of the hole portion and descending toward the two pieces parallel to the longitudinal direction of the foundation, and the fixing plate is parallel to the longitudinal direction of the foundation.
On a rectangular substrate having an edge, a through hole through which the anchor bolt passes, a boss portion that hangs down around the through hole and is approximately the same height as the thickness of the leg piece, and at least both ends of the two edges of the substrate. Since the downwardly formed claw pieces are provided, the upper surface of the leg piece is pressed by the claw pieces on the two sides of the hole portion as the nut is tightened, and the leg piece is connected to the base upper surface near the hole portion. It becomes possible to firmly attach to the foundation on the two sides with a gap between them, and even if there are irregularities on the upper surface of the foundation, the base metal fitting can be firmly and accurately fixed to the foundation, and the wall panel The building accuracy can be improved and the quality of the house can be improved.

[Brief description of drawings]

FIG. 1 is a sectional view showing an embodiment of the present invention, FIG. 2 is an enlarged sectional view showing an essential part thereof, and FIG. 3 is an exploded perspective view thereof.
FIG. 4 is a sectional view showing a fixing plate, and FIG.
FIG. 6C is a plan view showing the relationship between the eccentric position of the through hole of the fixing plate and its attachment, and FIG. 6 is a sectional view showing the prior art. 2 ... Anchor bolt, 3 ... Leg piece, 4 ... Receiving piece, 5 ...
… Hole part, 6 …… Substrate, 7 …… Through hole, 9 …… Boss part, 10…
… Claw pieces, 11 …… Fixing plate, 12 …… Nut, F …… Foundation, P …… Wall panel.

Claims (2)

[Claims] 1. An anchor bolt and an upper surface of a leg piece, the leg piece of a base metal fitting having a leg piece placed on an upper surface of a foundation in which an anchor bolt is planted and a receiving piece supporting a lower end of a wall panel. A fixing structure of a base metal fitting fixed to the upper surface of the foundation by using a fixing plate placed on the base plate and a nut that is screwed onto the anchor bolt and pushes down the fixing plate. A hole having a diameter and through which the anchor bolt passes is formed, and the leg piece is formed into a curved shape having a maximum height in the vicinity of the hole and descending toward two sides parallel to the longitudinal direction of the foundation. The fixing plate has a rectangular substrate having two edges parallel to the longitudinal direction of the foundation, a through hole through which the anchor bolt passes, and a height that is substantially the same as the thickness of the leg piece that surrounds the through hole. From the lower surface of the substrate, A boss portion that is loosely fitted to the portion, and claw pieces that are formed at least at both ends of the two end edges of the substrate and that face downward, and an anchor bolt that protrudes from the hole portion is provided in the through hole of the fixing plate. A fixing structure for a base metal fitting, characterized in that the fixing plate is placed on the upper surface of the leg piece by passing it through, and the leg piece is pressed through the fixing plate by tightening a nut. 2. The fixing structure for a base metal fitting according to claim 1, wherein the fixing plate is formed so as to be deviated from the center of the substrate to form the through hole.